I promised a photo and here they are, I'm a bit embarrassed by the amount of water lettuce in my pond. It never survived long before but this winter it has taken over. I think it will die off when it gets warmer and more sun, at least I sure hope it does.
Here's the arrowhead that has jumped out of its pot and is naturalized in the rocks at the end of the pond. It is looking a bit straggly now probably also because there is less full sun on the pond in the winter.
This is one bloom coming up from another batch that is in a pot but the pot fell off the ledge and is now in 4' of water. I haven't felt it was warm enough for me to get in there and put it back. I'm a wuss about cold water and the pond is now about 20° to 21° celsius or around 70°F.
There will be a lot more leaves and blooms when it is in full sun in the summer.